function Page(a) {
    this.showtype = "page";
    this.id = a.id != null ? a.id: (new Date()).getTime() + "";
    this.name = a.name != null ? a.name: "";
    this.surveyid = a.surveyid != null ? a.surveyid: "";
    this.type = a.type != null ? a.type: 0
};